EP 1755851 A1 20070228 - METHOD AND DEVICE FOR THE PRODUCTION OF A PLASTIC PREFORM
Title (en)
METHOD AND DEVICE FOR THE PRODUCTION OF A PLASTIC PREFORM
Title (de)
VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG EINES KUNSTSTOFFVORFORMLINGS
Title (fr)
PROCEDE ET DISPOSITF DE FABRICATION D'UNE PREFORME EN MATIERE PLASTIQUE
Publication
Application
Priority
- EP 2005005038 W 20050510
- EP 04011159 A 20040511
- EP 05747538 A 20050510
Abstract (en)
[origin: EP1600271A1] The process, using a semi-crystalline polymer in an amorphous state and with a slow rate of crystallisation, consists of plasticizing the polymer by heating it rapidly to a temperature below its melting point, forcing the plasticized polymer through a die, sweeping it as it leaves the die with a hot, dry inert gas such as nitrogen or carbon dioxide, collecting the plasticized polymer in a first container while maintaining its temperature at the plasticization level, and die-stamping it in the first container (6) or in a second one (9) after transfer from the first, accompanied by a sharp reduction in temperature to obtain a preform in an amorphous state. The apparatus used for the process consists of a polymer plasticizing chamber (3) with a surrounding heater, a feeder, a die (4) with an inert gas input (11) beneath it, a container (6) to collect the plasticized polymer, carried with others on a rotating disc (8), and a die stamper (7).
IPC 8 full level
B29C 43/34 (2006.01); B29C 31/04 (2006.01); B29C 31/06 (2006.01); B29C 48/345 (2019.01); B29C 48/05 (2019.01)
CPC (source: EP US)
B29C 43/34 (2013.01 - EP US); B29C 48/141 (2019.01 - EP US); B29C 48/05 (2019.01 - EP US)
Citation (search report)
See references of WO 2005108043A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1600271 A1 20051130; AT E444150 T1 20091015; CA 2566044 A1 20051117; CA 2566044 C 20120306; DE 602005016923 D1 20091112; EP 1755851 A1 20070228; EP 1755851 B1 20090930; ES 2330455 T3 20091210; PL 1755851 T3 20100226; PT 1755851 E 20091029; TW 200600305 A 20060101; US 2007210471 A1 20070913; WO 2005108043 A1 20051117
DOCDB simple family (application)
EP 04011159 A 20040511; AT 05747538 T 20050510; CA 2566044 A 20050510; DE 602005016923 T 20050510; EP 05747538 A 20050510; EP 2005005038 W 20050510; ES 05747538 T 20050510; PL 05747538 T 20050510; PT 05747538 T 20050510; TW 94115283 A 20050511; US 56905305 A 20050510